Micro and macroscopic models of rock fracture

Details Micro and macroscopic models of rock fracture Micro and macroscopic models of rock fracture

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003geoji.152..718t&link_type=abstract

Geophysical Journal International, Volume 152, Issue 3, pp. 718-728.

Astronomy and Astrophysics

Astronomy

44

Critical Point, Damage Mechanics, Fibre-Bundle Model, Fracture, Power-Law Scaling

Scientific paper

The anelastic deformation of solids is often treated using continuum damage mechanics. An alternative approach to the brittle failure of a solid is provided by the discrete fibre-bundle model. Here we show that the continuum damage model can give exactly the same solution for material failure as the fibre-bundle model. We compare both models with laboratory experiments on the time-dependent failure of chipboard and fibreglass. The power-law scaling obtained in both models and in the experiments is consistent with the power-law seismic activation observed prior to some earthquakes.

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